Spokeshave



(No Model.)

I. GAMIER. SPOKESHAVE. No. 417,144.

Patented Dec. 10, 1889.

"ling INVENTORI v (Zfforzg qy.

N. PETERS. Phololilhngraplmr, Washington D. C

' UNITED I STATES PATENT OFFICE,

Is.-\AC CAMIER, or CHICAGO, ILLINoIs.

SPOKESHAVE.

SPECIFICATION forming part of Letters Patent No. 417,144, dated December10, 1889.

Application filed March 23, 1889- To all wit 0112, it may concern.-

Be it known that I, ISAAC CAMIER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois,

have invented certain new and useful Improvements in Spokeshaves; and Ido hereby declare the following to be a full, clear, and exactdescription of the inyention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to certain improvements in the type ofspokeshaves shown and described in Letters Patent No. 395,738, issued meJanuary 8, 1889; and the present improvements have for their objects,first, to provide an improvedconstruction which,while furnishing ampleand effective means for clamping and holding the cutter-bit, will admitof the use of almost the whole of the same toeaccommodate for wear dueto constant resharpening; second, to afford a simple and effective meansfor adjusting the cutter-bit to its proper cutting position; third, toprovide an efficient and ready means whereby the working-face. of theshave can be adjusted to suit any desired curvature, either concave orconvex; fourth, to provide means for effecting a lateral adjustment ofthe cutter-bit within the throat of the shave, so as to effect a uniformprojection of the cutting-point with relation to the face of the shave;fifth, to afford a simple,

cheap, and effective construction for attachscrew to the top of thecutter-bit.

ing in a non-rotary condition the adjusting- I attain such objects bythe construction and arrange ment of parts illustrated in theaccompanyingflrawings, in which- Figure lis an elevation, in thedirection of the arrow shown in Fig. 2, of a spokeshave constructed inaccordance with my invention; Fig. 2, a transverse axial section of thesame; Fig. 3, a detail section at line a: m, Fig. 1; Fig. 4, anelevation of the back of the cutterbit; Fig. 5, an elevation of theclamping-plate.

Similar letters of reference indicate like parts in the several views.

The body or stock A of the shave is pro vided with the usual side wingsB, by which the spokeshave is grasped and manipulated by the operator.The cutter-bit C, as in my former patent above referred to,will fitsnugly within the throat of the stock A, so as to be Serial No. 30 L516.(N0 model.)

guided thereby in its adjustment, and its upper end will be formed withinturned lips c, that form an attaching-recess to receive the headed end(I of the screw D, by which the adjustment of the cutter-bit iseffected.

In the present improvement the head d of the screw D is formed by acylindrical transversely-extending shank or end (Z, over which parts iseffected.

As distinguished from my former patent,

the present construction of the adjustingscrew consists as follows: Theupper end of the inclined back standard A. of the shavestock A is formedwith a laterally or trans versely slotted head-A within the slot ofwhich is arranged the adjusting thumb-nut By this means a I.

E of the screw D in such a manner as to be capable of free rotarymovement without any capability of a movement in line with the axis ofits screw D, so that as it is rotatedby the thumb and finger of theoperator it will raise or lower the screw D and with it cutter-bit C inaccordance with the direction in which it is rotated. V

In the present improvement the clampingplate G, by which the cutter-bitC is firmly clamped atits required adjustment, is held in place withinthe throat of the stock in a pivotal manner by being slipped under theoverhanging inwardly-projecting lugs a at the sides of the throat of thestock A, recesses 9 being formed in the top edges of the clampingplateto partly receive such lugs, so that the plate will be held from anyother than a pivotal movement.

The usual clamping-screw may be used at the top of the plate G to eifectthe pivotal movement of such plate so as to clamp or release thecutter-bit, as set forth in my former patent. However, I prefer thefollowing improved construction.

h h are a pair of counterpart lugs or ears centrally arranged at theupper end of the clamping-plate G, between which is pivoted thelever-cam H, the cam portion of which is adapted to bear upon thecutter-bit, so that when turned it will pivotally move the clamping-plate Gto either clamp orrelease said on ttcr-bi t.

The cam portion of the lever-cam will be made of some width so that itcan be centrally cut away, as indicated in Fig. 2, so as to admit of thepassage downward of the head (Z of the adjusting-screw in .the downwardadjustment of the cutter-bit.

The toe or forward bearing part I of the stock A, I make circular,adjustable on a center closely adjacent to the cutting-point of the bit0, so that it can be adjusted to suit any variety of workeitherstraight, convex, orconcaveas indicated in dotted lines on the drawings.

My preferred manner of accomplishing such adjustment is by forming suchtoe with sector-shaped ends '17, preferably formed with astraight-forward extension i, and arranging the same to slide beneaththe curved hoods a at each forward end of the stock A.

The parts are clamped and held to their required adjustment by means ofa set-screw J at each, end, which passes through an elongated slot aiuea'cli hood and screws into the sector-shaped ends '1', as shown, jbeing a bearing collar on each wider than the slots and adapted to bearupon the outersurface of the hoods, as clearly represented in Figs. 1and 2. To effect alateral adjustment of the cutterbit within the throatof the shave, so that the cutting-edge will be brought on a lineparallel withthe face of the shave, I provide the following improvedconstruction:

K is a slot or groove extending centrally up the back of the cutter-bit;K, a hole or per foration in the back of the stock A, which formsafulcrum for the bar or other instru-' ment that is put through suchhole or opening to engage in the groove or slot K to effect the lateraladjustment of the cutter-bit.

Having thus fully described my said invention, 'what I claim as new, anddesire to secure 'openended hole or perforation c, essentially as andfor the purpose set forth.

3. The combination, in a spokeshave, of the cutter-bit C, provided withthe groove or slot K, extending centrally up the back of the same, andthestock A, provided with a perforation K in. line with the slot orgroove K, essentially as and for the purpose set forth.

In testimony whereof Iaftix my signature in presence of two witnesses.

ISAAC oAi-unnf \Vitnesses;

ROYA Monms, ROBERT E onus.

